Maybe, I had too much time on my hands last night. I took the XS box off to see signs of mods or corrosion.No signs of wear and everything looked fine this unit had the serial number tag removed and not sure when produced and was glad to see this detector had the shield,which meant a later model.Using the Sovereign site I checked to see if the silent search was modified the jumper not changed,which is good.I adjusted the tone pot higher,did this while everything was apart.My strategy the nickles have such a low tone I don't hear them as well.I'm going out in the field today and see if these tone adjustments will work better for low conductors.HH Ron